MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 591874c05f745cf6f02c3ab1d420f9edffbda8ca2c967b0d8cbad21a10f3fd09. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 591874c05f745cf6f02c3ab1d420f9edffbda8ca2c967b0d8cbad21a10f3fd09
SHA3-384 hash: 6ad0f69b21ec5d8915e8228a773b0b965c69d31930f05541813bb4e5b215e5d8e0fa963d838fced4f16a7b755cfb82b6
SHA1 hash: d987334f6c1cfce74b83a9c07a93bf1dd683f1d7
MD5 hash: 8be8446589b3886dabd9c2f38ed6ce7d
humanhash: lactose-quiet-vermont-utah
File name:SecuriteInfo.com.Variant.Strictor.262149.9345.7407
Download: download sample
Signature Formbook
Create hunting rule
File size:826'368 bytes
First seen:2022-06-15 10:47:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:fCN31TWuzpm1BOOQy+/09kCV4geAv2dLjc5NnQRq5gcINmdBQfWwWooC7Z7:f0NzU7OOQLbCiAvUINF59WEwWo97Z
Threatray 12'953 similar samples on MalwareBazaar
TLSH T1AA057D8D66F6441BD1181671D9D6AEE017B0EC75BB12C70ABE81F9CEAE323E144123E7
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon c4bada9ae8cca4c8 (13 x Formbook, 6 x AgentTesla, 5 x AveMariaRAT)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
249
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/280116/
Detection(s):
SecuriteInfo.com.Variant.Strictor.262149.9345.7407.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62a9b8ea8763ffd4adc7f38c/reports/e34e7fe9-6dab-43f2-8992-ecdb22513d86/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/468de047-71c3-4f2d-9ef5-778c8393b323
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1013588
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/591874c05f745cf6f02c3ab1d420f9edffbda8ca2c967b0d8cbad21a10f3fd09/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-06-15 10:43:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lemhjqc7oropn4bmhky5iihz5x733kgkfslhwdmmxljbueht7ueq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
262fb779ec6fd7c58573c11480f2293f7680b38d3b62eb9acea9d228ed0a2f09
Formbook
4930c3f5a795efda4d972d34a905acd87d6b42ce7bd2b2652460390cb9464126
Formbook
65c3708767175b438a938b8d5d4ae52a1d0cf450a38a4298a41ae9bd73816686
Formbook
69af526dae44e6d6cd6c83d443d2129c948e7c46d099d89f48a4bbecbab61cfd
Formbook
9120ea8d13a11c171723ddc231be7217f6611b631d98a71254be079cc3e9dfe2
Formbook
9a95de1cbc2bc1bbb8b87c0ea935b9c6675ce2a712465a40cbb2f4dfb85d711f
Formbook
a52dca7952fc2f9e276a79f41db2de5dfc2f7cc77296a72534fb052e0deaf977
Formbook
ec6260e2fa3a7b5c332df32c1c44b13533a481d04add67596e632dc8898464c2
Formbook
+ 12'943 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:oi25 rat spyware stealer trojan
Link:
https://tria.ge/reports/220615-mv4qvadgam/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
Unpacked files
SH256 hash:
d9ad45bcbfe603a3be699508002edc692666abb8607437d7287797ebbb20c35c
MD5 hash:
75d51ce06fec59270a87053916934bbb
SHA1 hash:
892b1be0a0937ef4607d705b4e750b36e166e084
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ec4b9856-89d8-4e74-bcef-5d0a6787a6d7/
Parent samples :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 hash:
cefe87a0de015dc44dc1086458460be07edba8d9f7211c4bed8a11809d520a72
MD5 hash:
0403b7f4765e08a2f74690caf1a82990
SHA1 hash:
b0e9f69b8c337b605edecdcc3345c6f0045ee04e
Link:
https://www.unpac.me/results/ec4b9856-89d8-4e74-bcef-5d0a6787a6d7/
SH256 hash:
5e95b92999dc337f367d2c8e91e68daadbcdfc537d2d11fa2612ce68a58e8d04
MD5 hash:
e3df2dd40f0ce5dcd593a52653983ca4
SHA1 hash:
d7d895a35867dc41c8a03ab5ec3aa4e38e1a08a3
Link:
https://www.unpac.me/results/ec4b9856-89d8-4e74-bcef-5d0a6787a6d7/
SH256 hash:
00497966ee408c4c1badaac27ddc30b40062a0a0fda43f3325be40073f994e49
MD5 hash:
ba3d76e414bc64a6d69a9b0fb3644bc9
SHA1 hash:
7b1548114d038be4f3e1e74103b8a20e017bf123
Link:
https://www.unpac.me/results/ec4b9856-89d8-4e74-bcef-5d0a6787a6d7/
SH256 hash:
c86974f5d25ff403374516ac44a4d8b888d881de2dc92f400abf6a092bccd379
MD5 hash:
6482e9bcd9b470f0713e02d327a7d4b9
SHA1 hash:
526adca4404e347c3bc343bcc56bab6685f7f8da
Link:
https://www.unpac.me/results/ec4b9856-89d8-4e74-bcef-5d0a6787a6d7/
SH256 hash:
591874c05f745cf6f02c3ab1d420f9edffbda8ca2c967b0d8cbad21a10f3fd09
MD5 hash:
8be8446589b3886dabd9c2f38ed6ce7d
SHA1 hash:
d987334f6c1cfce74b83a9c07a93bf1dd683f1d7
Link:
https://www.unpac.me/results/ec4b9856-89d8-4e74-bcef-5d0a6787a6d7/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/591874c05f74/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/591874c05f745cf6f02c3ab1d420f9edffbda8ca2c967b0d8cbad21a10f3fd09

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/280116/

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